image: Drop tls_array from the image

We use registers set anyway
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

cr-dump.c

@@ -556,30 +556,6 @@ err:
 	return ret;
 }
 
-static int dump_task_tls(pid_t pid, struct desc_struct *tls_array, int size)
-{
-	int ret = -1;
-
-	if (size != GDT_ENTRY_TLS_ENTRIES) {
-		pr_err("Wrong TLS storage size: %d\n", size);
-		goto err;
-	}
-
-	memzero(tls_array, sizeof(*tls_array) * size);
-
-	/* Pure x86-64 has a base addresses only */
-	ret = sys_arch_prctl(ARCH_GET_FS, &tls_array[FS_TLS].base_addr);
-	if (ret)
-		pr_err("Failed to obtain FS_TLS entry: %d\n", ret);
-
-	ret = sys_arch_prctl(ARCH_GET_GS, &tls_array[GS_TLS].base_addr);
-	if (ret)
-		pr_err("Failed to obtain GS_TLS entry: %d\n", ret);
-
-err:
-	return ret;
-}
-
 static int get_task_regs(pid_t pid, struct core_entry *core)
 {
 	user_fpregs_struct_t fpregs	= {-1};
@@ -658,12 +634,6 @@ static int dump_task_core_seized(pid_t pid, struct cr_fdset *cr_fdset)
 		goto err_free;
 	pr_info("OK\n");
 
-	pr_info("Obtainting TLS ... ");
-	ret = dump_task_tls(pid, core->u.arch.tls_array, ARRAY_SIZE(core->u.arch.tls_array));
-	if (ret)
-		goto err_free;
-	pr_info("OK\n");
-
 	pr_info("Obtainting personality ... ");
 	ret = get_task_personality(pid, &core->task_personality);
 	if (ret)

cr-show.c

@@ -92,15 +92,6 @@ static void show_core_regs(struct cr_fdset *cr_fdset)
 	pr_regs3(regs, r15, bp, bx);
 	pr_regs4(regs, orig_ax, flags, fs_base, gs_base);
 
-	pr_info("\n\t---[TLS area]---\n");
-
-	lseek(fd_core, GET_FILE_OFF(struct core_entry, u.arch.tls_array), SEEK_SET);
-
-	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) {
-		read_ptr_safe(fd_core, &tls, err);
-		pr_info("tls[%2i] = %x\n", i, tls.base_addr);
-	}
-
 err:
 	return;
 }

include/image.h

@@ -171,7 +171,6 @@ struct user_fpregs_entry {
 struct ckpt_arch_entry {
 	struct user_regs_entry		gpregs;
 	struct user_fpregs_entry	fpregs;
-	struct desc_struct		tls_array[GDT_ENTRY_TLS_ENTRIES];
 };
 
 #define CKPT_ARCH_SIZE			(1 * 4096)